Windows XP forum: "Limited or no connectivity"

I am running Windows XP Professional Version 2002 Service Pack 3 on a Lenovo T420. My wireless network connection works fine everywhere (airport, hotel, coffee shop, etc.) except on my home network. At home, it will connect and then disconnect seemingly at random. Once connected, it will stay connected for a while (60-90 minutes) and then disconnect. Later on, it will reconnect again. I don't have this problem with any other devices that I use on my home network (Windows 7 desktop and laptops, ipad, printer, etc.) Any thoughts on how to diagnose / troubleshoot would be appreciated.

I dropped hints about more information is required and it's up to you to tell us something about every item the wifi needs to work. You don't have to tell us the actual SSID but do tell if it's so long and hidden. Keep going.

Also, NORTON and other security does this when they expire. Keep writing.Bob

That looks like a fairly new model and if you downgraded to XP, then it's possible the wireless driver is not quite up to snuff.. You mention that you have WPA2-AES running on the home router.. Many hotel, coffee shops, etc. use WPA instead of WPA2 because there are old machines which don't support it and they want to allow all their guests to use their service.. The wireless adapter driver you have installed on the computer may be creating the problem on your home connection because it can't hook up due to increased security..

So try updating the driver on the computer's wireless adapter to see if it fixes the issue.. If not, try reducing the security on your home router to WPA.

The system was provided by my new employer (of 3 months, which is when I've been experiencing the issue). It was definitely downgraded to Windows XP based on the Windows 7 logo sticker on the unit. On the Device Manager->Network Adapters list, it shows "Intel 82579LM Gigabit Nework Connection" with Driver Version 11.8.84.0 and Driver Date 12/21/2010. There appears to be a more recent version on the Intel site. I will try loading this coming weekend as I am on the road this week. Thanks for the excellent suggestion!!!

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If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

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